Things You Didn't Know About Famous Wizarding Battles If You've Only Seen The 'Harry Potter' Movies

Professors McGonagall and Sprout lead the charge in the Battle of Hogwarts by keeping the strongest students of their respective fields as part of their teams. Harry comes across Neville and Sprout holding pots of mandrakes that they fling over the walls at the Death Eaters.

Professor McGonagall leads her own group, which is protected by a number of enchanted desks that McGonagall has created through Transfiguration. She uses the desks as a way to charge at the Death Eaters to force them to disperse.

Fawkes is capable of surviving the killing curse because phoenixes are functionally immortal. During the clash between Albus Dumbledore and Lord Voldemort in the Ministry of Magic, Fawkes uses his ability to be resurrected.

When Dumbledore conjures a whip to bind Voldemort, the latter turns it into a massive and fiery snake. While Dumbledore is busy against the fire serpent, Voldemort sends the killing curse his way, which Fawkes intercepts.

Fawkes outright swallows the killing curse and bursts into flames - he returns in his baby form, alive once more. Fawkes's sacrifice allows Dumbledore to capitalize and trap Voldemort in an encasing made of water, which the Dark Lord escapes only by possessing Harry.

Nobody from Harry's side perishes after he sacrifices himself to Voldemort because they all become protected by the power of his love. Harry's intention to selflessly give his life activates the Love Protection Spell that extends to everyone he considers his allies in the Battle of Hogwarts.

After Harry reveals he's still alive, Voldemort and his Death Eaters attempt to eliminate their enemies but are unsuccessful. Harry understands that he's emulated the sacrifice his mother had once made toward his own loved ones.

Voldemort, as always, is unable to understand love and doesn't realize that the prophecy had come true - the power that the Dark Lord would not know was ultimately love.

During the Battle of the Tower, Ron, Ginny, and Hermione survive primarily because each has consumed some of Harry's Felix Felicis potion.

Harry has a feeling something bad will happen when he's gone with Dumbledore to the cave and asks his friends to take the Felix Felicis - his hunch turns out to be right when the potion saves their lives.

Ginny notes that Death Eater Thorfinn Rowle threw curses everywhere he went, which would have struck her, Hermione, and Ron had they not consumed the Felix Felicis.

The movies make a bit of a mockery of the power of flight because just about every Death Eater can do so. In the books, only Voldemort is capable of flying - he later teaches Snape how to accomplish unsupported flight as well.

During the Battle of the Seven Potters, Voldemort personally pursues Harry and initially targets Mad-Eye Moody and Mundungus-as-Harry because he believes Harry will be accompanied by the most powerful wizard; he then turns his attention to Kingsley and Hermione-as-Harry until Voldemort is summoned to the real Harry.

Each character who comes across Voldemort is astounded to see him flying without any kind of support. Hagrid, Kingsley, and Harry, in particular, are left speechless and in terror when they see the Dark Lord in pursuit. 

The Order of the Phoenix then relay this information to their members so they can be prepared for any encounter with Voldemort in the future.

Bill answers the call for help from the Order of the Phoenix and arrives at Hogwarts for the Battle of the Tower, where Fenrir Greyback ambushes him.

Bill is so brutally savaged by the werewolf that his face is unrecognizable. Harry asks Madam Pomfrey if she can heal Bill's wounds, but learns that werewolf attacks are cursed, which means Bill is left permanently scarred.

Greyback's attack isn't as harmful to Bill as it could have been because there's no full moon that night; Bill takes on some wolfish characteristics, but doesn't become a werewolf.